12.2 QA

December 2, 2020

Quantitative Algebra

Ms. Acosta

Please have answers prepared for the next three slides

Multiple Choice

1. Some scientists recorded the temperature in the desert at −24°F. The temperature would have to increase by how many degrees Fahrenheit to reach 67°F?

• 43

• 81

• 91

• 92

Multiple Choice

2. When Maria went skiing at 8 AM, the temperature was −7° Fahrenheit. Five hours later when she went home, the temperature was 23° Fahrenheit. Which of the following represents the temperature change from the time Maria first started skiing to when she went home?

• -30

• -16

• +16

• +30

Multiple Choice

3. Which of the following is a factor of 816?

• 35

• 42

• 51

• 80

Be prepared to answer questions in the next three slides!

Multiple Choice

The number inside the radical is called...

• the index
• the radical sign
• the radicand
• none

Multiple Choice

65

• Is a perfect square.
• Is not a perfect square.

Multiple Choice

144

• Is a perfect square.
• Is not a perfect square.

ALWAYS make sure it is as simplified as it can be!!!

Multiple Choice

Simplify

• 17√2

• 9√1

• 9

• 9√2

Multiple Choice

Simplify

• -5√1

• 8√2 + 13√3

• 21√5

• 20√5

Multiple Choice

Simplify

• $11\sqrt{5}$

• $11\sqrt{10}$

• $5\sqrt{5}$

• $12\sqrt{10}$

Multiple Choice

 $Simplify:\ 2\sqrt{5}-\sqrt{5}+4\sqrt{5}+\sqrt{3}$  

•  $6\sqrt{5}+\sqrt{3}$  

•  $5\sqrt{5}+\sqrt{3}$  

•  $6\sqrt{5}$  

•  $6\sqrt{3}$  

Multiple Choice

Simplify $3\sqrt{27}$   

• 9

•  $27\sqrt{3}$  

•  $3\sqrt{27}$  

•  $9\sqrt{3}$  

Multiple Choice

Simplify $5\sqrt{48}$   

•  $4\sqrt{3}$  

•  $20\sqrt{3}$  

•  $16\sqrt{3}$  

•  $80\sqrt{3}$  

ALWAYS make sure it is as simplified as it can be!!!

Multiple Choice

Simplify completely.

• 3√8

• 2

• 2√2

• -16

Multiple Choice

Simplify

• 13√3

• 10√30

• 13√6

• 11√3

Multiple Choice

Simplify:
6√2 ⋅5√14

• 32√7
• 60√7
• 2√7
• 30√7

Multiple Choice

Simplify √72

• 7√9
• 4√6
• 6√2
• 3√4

Multiple Choice

Simplify:
√10 ⋅ √45

• 3√50
• 8√2
• √450
• 15√2

Multiple Choice

Simplify the following radical: 2√24

• 4√6
• 2√6
• 24√2
• 4√4